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armio.c: make GPIOs 8 & 13 outputs driving 1 on all "classic" targets Calypso GPIOs 8 & 13 are pinmuxed with MCUEN1 & MCUEN2, respectively, and on powerup these pins are MCUEN, i.e., outputs driving 1. TI's code for C-Sample and earlier turns them into GPIOs configured as outputs also driving 1 - so far, so good - but TI's code for BOARD 41 (which covers D-Sample, Leonardo and all real world Calypso devices derived from the latter) switches them from MCUEN to GPIOs, but then leaves them as inputs. Given that the hardware powerup state of these two pins is outputs driving 1, every Calypso board design MUST be compatible with such driving; typically these GPIO signals will be either unused and unconnected or connected as outputs driving some peripheral. Turning these pins into GPIO inputs will result in floating inputs on every reasonably-wired board, thus I am convinced that this configuration is nothing but a bug on the part of whoever wrote this code at TI. This floating input bug had already been fixed earlier for GTA modem and FCDEV3B targets; the present change makes the fix unconditional for all "classic" targets. The newly affected targets are D-Sample, Leonardo, Tango and GTM900.
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 02 Jan 2020 05:38:26 +0000
parents 219afcfc6250
children
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/* 
+----------------------------------------------------------------------------- 
|  Project :  GPRS (8441)
|  Modul   :  sndcp_sdaf.h
+----------------------------------------------------------------------------- 
|  Copyright 2002 Texas Instruments Berlin, AG 
|                 All rights reserved.  
| 
|                 This file is confidential and a trade secret of Texas 
|                 Instruments Berlin, AG 
|                 The receipt of or possession of this file does not convey 
|                 any rights to reproduce or disclose its contents or to 
|                 manufacture, use, or sell anything it may describe, in 
|                 whole, or in part, without the specific written consent of 
|                 Texas Instruments Berlin, AG. 
+----------------------------------------------------------------------------- 
|  Purpose :  Definitions for sndcp_sdaf.c 
+----------------------------------------------------------------------------- 
*/ 

/*---- HISTORY --------------------------------------------------------------*/
#if 0

  $Log:: /GPRS/Condat/MS/SRC/SNDCP/sndcp_sdaf.h                            $
 * 
 * 8     15.05.00 16:55 Hk
 * T H E   E N D.
 * 
 * 7     15.05.00 16:16 Hk
 * backup.
 * 
 * 6     9.05.00 18:59 Hk
 * XID negotiation work in progress. Backup.
 * 
 * 5     18.04.00 18:47 Hk
 * Backup. Work on XID negotiation.
 * 
 * 4     30.03.00 16:04 Hk
 * 
 * 3     17.03.00 18:03 Hk
 * Acknowledged data transfer is now implemented and tested uplink and
 * downlink.
 * 
 * 2     10.03.00 17:49 Hk
 * Backup. First downlink ack data transfer ok (case 700).
 * 
 * 1     10.03.00 11:43 Hk
 * Initial.
 * 
 

#endif

#ifndef SNDCP_SDAF_H
#define SNDCP_SDAF_H

/*
 * Convenience functions, not in SDL
 */
EXTERN BOOL sda_f_bit (T_LL_DATA_IND* ll_data_ind);
EXTERN UBYTE sda_get_pcomp (T_LL_DATA_IND* ll_data_ind);
EXTERN BOOL sda_m_bit (T_LL_DATA_IND* ll_data_ind);

EXTERN void sda_is_seg_valid(T_LL_DATA_IND* ll_data_ind,
                         BOOL* valid);
EXTERN void sda_is_nsapi_rec (UBYTE nsapi, BOOL* b);

EXTERN void sda_set_nsapi_rec(UBYTE nsapi, BOOL b);

EXTERN void sda_ac_f_f0 (T_LL_DATA_IND* ll_data_ind);

EXTERN void sda_ac_f_f1_m0 (T_LL_DATA_IND* ll_data_ind);

EXTERN void sda_ac_f_f1_m1 (T_LL_DATA_IND* ll_data_ind);

EXTERN void sda_ac_s_f0_m0 (T_LL_DATA_IND* ll_data_ind);

EXTERN void sda_ac_s_f0_m1 (T_LL_DATA_IND* ll_data_ind);

EXTERN void sda_ac_s_f1_m0 (T_LL_DATA_IND* ll_data_ind);

EXTERN void sda_ac_s_f1_m1 (T_LL_DATA_IND* ll_data_ind);

EXTERN void sda_delete_cur_sn_data_ind (U8 nsapi);

EXTERN void sda_get_data_if_nec (UBYTE sapi);

EXTERN void sda_init (void);

EXTERN void sda_get_nsapi(T_LL_DATA_IND* ll_data_ind, UBYTE* nsapi);

#endif /* !SNDCP_SDF_H */